With the improvement of China’s economic level and the change of people’s lifestyles, the number of diabetic patients has increased significantly, and China now ranks second in the world in terms of the number of people with diabetes. According to the survey of the Ministry of Health, there are about 1.2 million new diabetic patients in China every year. Diabetes mainly includes type 1 diabetes and type 2 diabetes, of which type 2 diabetes accounts for about 90% of diabetic patients. Diabetes is a metabolic disease characterized by chronic increase in blood glucose level, and its occurrence is closely related to genetic factors and environmental factors. The occurrence of diabetes is closely related to genetic and environmental factors. Patients with diabetes have disorders of sugar, fat and protein metabolism due to insulin resistance or defective secretion in the body, which can lead to serious lesions in the eyes, kidneys, nerves, cardiovascular and other organs as the disease progresses and threaten life and health if blood sugar is not well controlled. When it comes to diabetes, people tend to think of the so-called “three more and one less” symptoms of diabetic patients, i.e. eating more, drinking more, urinating more and losing weight. However, in reality, it is not common for people with diabetes to have the typical symptoms of “three more and one less”, but rather it is more common for people to overlook habits and symptoms that lead to diabetes. In fact, more than one-third of early diabetic patients often have atypical symptoms, and patients often do not think about the possibility of diabetes and turn to surgery, gynecology, infection, etc., so that diabetes is not diagnosed in time. It is therefore important to recognize these atypical diabetes symptoms and to discard bad habits that can easily lead to diabetes. What are these atypical symptoms of diabetes? 1, postprandial hypoglycemia Some people say that people who frequently experience hypoglycemia are prone to diabetes, which is somewhat justified. Diabetic patients, especially those who are obese, often have mild hypoglycemic symptoms such as dizziness, sweating, palpitations and hand tremors at 3-5 hours after meals. This is because the defect of insulin secretion in the early stage of type 2 diabetes causes the peak of insulin release after meal to be delayed from the normal 0.5-1 hours after meal to 2 hours later, and then it gradually decreases. As the blood sugar has dropped to the pre-meal level 2 hours after meal, while the insulin level is still high, so that hypoglycemic symptoms will appear. Therefore, when the symptoms of postprandial hypoglycemia occur frequently, it is necessary to pay attention to the possible development of diabetes. 2, easy to infection and skin pigmentation Diabetic patients can repeatedly develop skin scabies canker, infection of respiratory and urinary system, infection of surgery and wounds. Female patients often experience abnormal dryness and itching of the vagina, and it is difficult to treat. Some patients have difficulty healing surgical incisions or wounds after surgery. This is due to the fact that high blood sugar in the patient’s body interferes with and damages the immune defense system, as well as causing malnutrition and reduced resistance due to impaired metabolism of protein and other nutrients. Therefore, when recurrent infections occur in a certain area, attention should be paid to blood glucose checks along with treatment. In addition, if there is skin pigmentation on the neck, armpits, and heel of thighs, called pseudoacanthosis nigricans, it often indicates the presence of insulin resistance and hyperinsulinemia, mostly combined with obesity, and easily develops into diabetes. Therefore, patients with skin acanthosis nigricans need to check blood sugar and blood insulin to clarify the presence of diabetes and insulin resistance, and can reduce insulin resistance by strengthening exercise, controlling diet, reducing weight, taking insulin sensitizers or metformin if necessary, and correcting blood lipids. 3, the existence of diabetes risk factors Some people do not have any symptoms, but in the routine physical examination found high blood sugar, and then further examination is often found to have diabetes or pre-diabetes. These patients often have a combination of diabetes risk factors or diseases, such as a family history of diabetes, advanced age, obesity, hypertension, high blood pressure, high blood cholesterol, and a history of having deformed or large children. Diabetes diagnosis and treatment guidelines point out that adults of any age who are overweight or obese (BMI ≥ 25 kg/m2) and have 1 or more risk factors for diabetes should consider regular hospital checkups for early detection of diabetes. 4, poor lifestyle Some people have suggested that sleeping more, sleeping less or not eating breakfast is prone to diabetes. Although these claims have been proven by a few studies, their scientific validity still needs to be confirmed by more studies. However, maintaining a good lifestyle is indeed an important part and effective means of intervention for diabetes and many other chronic diseases.